Dockerfile: install tcc-libs-static

[ee7]

Despite no change to the Dockerfile on our end, we were seeing an error:

tcc: error: libtcc1.a not found

This was due to Alpine splitting the tcc package into:

• tcc
• tcc-dev
• tcc-doc
• tcc-libs
• tcc-libs-static

combined with the other underlying problems:

• The tcc package in Alpine is in the testing repo, which makes breaking changes more likely
• The CI workflow was skipped in a PR that changed only docs, but would have failed if it ran
• The deployment workflow runs on main even if the CI workflow fails on main
• The tcc package isn't pinned, because we can't reliably pin package versions on Alpine:

nim-test-runner/Dockerfile

Lines 6 to 11 in 05911af

	# We can't reliably pin the package versions on Alpine, so we ignore the linter warning.
	# See https://gitlab.alpinelinux.org/alpine/abuild/-/issues/9996
	# hadolint ignore=DL3018
	RUN apk add --no-cache \
	gcc \
	musl-dev

nim-test-runner/Dockerfile

Lines 23 to 28 in 05911af

	# hadolint ignore=DL3018
	RUN apk add --no-cache \
	musl-dev \
	pcre \
	&& apk add --no-cache --repository https://dl-cdn.alpinelinux.org/alpine/edge/testing \
	tcc \

Install the new tcc-libs-static subpackage so that libtcc1.a is available again. See the contents of the tcc packages:

• tcc
• tcc-dev
• tcc-doc
• tcc-libs
• tcc-libs-static

This commit also bumps the tcc version, because the current state (bcb2010) was deployed after the upstream bump.

Fixes: #165
Fixes: #166